woulda helped a lot in its ID, tru for any amanita. We need a basal volva for confirmation.

But…from what I can see, especially the gray coloration on the annulus and the powdery UV remnants on the cap, I would suspect that this amanita is porphyria, which can have a dark purplish brown to paler gray-brown cap, and always has a gray veil.

The base on porphyria is an abrupt bulb without a membrane; on phalloides (which never shows a gray annulus) it is a rounded bulb with a loose membranous sac.

check out other photos of both of these species here on MO to get an idea of the differences.